ASTROSAT CZTI

Data Quality Report

Orbit 23082

Creation date: 2024-06-27T18:49:31.515385
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_049T01_9000003408_23082cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23082cztM0_level2_quad_clean.evt
Size (bytes)433,771,20084,487,680
Size413.7 MB 80.6 MB
Events in quadrant A2,992,540538,554
Events in quadrant B2,985,753548,511
Events in quadrant C3,161,759523,300
Events in quadrant D3,574,815514,780

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129691
B0128691
C0132271
D0146971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6215490.788415%
B6215620.997586%
C62151081.737731%
D6215610.981496%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7225 6216 0 0 0.00% 0.00%
B 7225 6216 9 9 0.12% 0.14%
C 7225 6216 20 20 0.28% 0.32%
D 7225 6215 18 18 0.25% 0.29%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 6 16 118901 783.86 745 728 150.8
A 13 254 9057 55.25 745 728 150.8
A 3 137 6496 38.26 745 728 150.8
B 3 64 26056 177.81 741 722 142.5
B 4 216 24389 166.11 741 722 142.5
B 0 190 22853 155.33 741 722 142.5
C 0 10 154491 912.08 719 722 168.6
C 14 238 114334 673.89 719 722 168.6
C 10 187 32806 190.31 719 722 168.6
D 1 52 505875 2809.73 732 708 179.8
D 7 238 162049 897.37 732 708 179.8
D 12 227 77965 429.7 732 708 179.8

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter